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Essential oils from myrtaceae species of the brazilian southeastern maritime forest (Restinga) / Mônica Freiman de S. Ramos in The journal of essential oil research, Vol. 22 N° 2 (Mars/Avril 2010) 

Public ISBD [article]  in The journal of essential oil research > Vol. 22 N° 2 (Mars/Avril 2010) . - pp. 109-113 Titre : Essential oils from myrtaceae species of the brazilian southeastern maritime forest (Restinga) Type de document : texte imprimé Auteurs : Mônica Freiman de S. Ramos, Auteur ; Sérgio da S. Monteiro, Auteur ; Vagner P. da Silva, Auteur Article en page(s) : pp. 109-113 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Eugenia  prasina  Eugenia  sulcata  Eugenia  punicifolia  Eugenia  rotundifolia  Neomitranthes  obscura  Myrciaria  floribunda  Myrtaceae  Essential  oil  composition  α-pinene  β-pinene  1,8-cineole  α-copaene  β-elemene  (E)-nerolidol  1-epi-cubenol  Trans-isolongifolanone  α-eudesmol  α-cadinol Index. décimale : 646 Résumé : The leaf oils from five Myrtaceae species growing in the restinga forest of Carapebus, on the southeastern Brazilian coast, were obtained by hydrodistillation and analyzed by GC/MS. Eugenia punicifolia oil contained only sesquiterpenes, with predominance of b-elemene (22.1%) followed by β-caryophyllene (8.5%) and components of the selinane (24.8%) and cadinane (14.0%) skeletal-types. Eugenia sulcata oil had the highest content of monoterpenes, among which α-pinene (12.2%), β-pinene (10.8%) and 1,8-cineole (19.6%) predominated. This profile was completed with 23.5% of caryophyllane and humulane derivatives. α-Pinene also appeared significantly (18.8%) in Eugenia rotundifolia, followed by small amounts of α-terpineol (4.4), while limonene (4.7%) and 1,8-cineole (6.8%)were the main monoterpenes in Myrciaria floribunda. The chemical profile of Neomitranthes obscura was also dominated by selinane-type sesquiterpenes: α-cadinene (23.4%), selina-3,7(11)-diene (13.9%), β-selinene (8.5%) and α-selinene (5.5%), followed by traces of pinenes, limonene and 1,8-cineole (2.4%). Total cyclic sesquiterpene alcohols, esters and epoxides decreased from 55.5% in E. rotundifolia to 8.6% in M. floribunda. However, the latter species contained 26.9% of (E)-nerolidol in the oil composition. Traces of ketones (up to 3.1%) are present in E. punicifolia, N. obscura and M. floribunda. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/50 [article] Essential oils from myrtaceae species of the brazilian southeastern maritime forest (Restinga) [texte imprimé] / Mônica Freiman de S. Ramos, Auteur ; Sérgio da S. Monteiro, Auteur ; Vagner P. da Silva, Auteur . - pp. 109-113. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 2 (Mars/Avril 2010) . - pp. 109-113 Mots-clés : Eugenia  prasina  Eugenia  sulcata  Eugenia  punicifolia  Eugenia  rotundifolia  Neomitranthes  obscura  Myrciaria  floribunda  Myrtaceae  Essential  oil  composition  α-pinene  β-pinene  1,8-cineole  α-copaene  β-elemene  (E)-nerolidol  1-epi-cubenol  Trans-isolongifolanone  α-eudesmol  α-cadinol Index. décimale : 646 Résumé : The leaf oils from five Myrtaceae species growing in the restinga forest of Carapebus, on the southeastern Brazilian coast, were obtained by hydrodistillation and analyzed by GC/MS. Eugenia punicifolia oil contained only sesquiterpenes, with predominance of b-elemene (22.1%) followed by β-caryophyllene (8.5%) and components of the selinane (24.8%) and cadinane (14.0%) skeletal-types. Eugenia sulcata oil had the highest content of monoterpenes, among which α-pinene (12.2%), β-pinene (10.8%) and 1,8-cineole (19.6%) predominated. This profile was completed with 23.5% of caryophyllane and humulane derivatives. α-Pinene also appeared significantly (18.8%) in Eugenia rotundifolia, followed by small amounts of α-terpineol (4.4), while limonene (4.7%) and 1,8-cineole (6.8%)were the main monoterpenes in Myrciaria floribunda. The chemical profile of Neomitranthes obscura was also dominated by selinane-type sesquiterpenes: α-cadinene (23.4%), selina-3,7(11)-diene (13.9%), β-selinene (8.5%) and α-selinene (5.5%), followed by traces of pinenes, limonene and 1,8-cineole (2.4%). Total cyclic sesquiterpene alcohols, esters and epoxides decreased from 55.5% in E. rotundifolia to 8.6% in M. floribunda. However, the latter species contained 26.9% of (E)-nerolidol in the oil composition. Traces of ketones (up to 3.1%) are present in E. punicifolia, N. obscura and M. floribunda. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/50